Sico Proluxe 1 Primary Coat RE Wood Finish (Formally Sikkens Cetol 1)SICO ProLuxe 1 Primary Coat Wood Finish Is A Premium Alkyd Transparent Exterior Wood Basecoat. Sico Proluxe 1 Primary Coat is the first step to creating a protective, beautiful wood finish. As the initial coat, it penetrates deep into the wood grain to form a strong foundation. When paired with Sico ProLuxe 23 Top Coat RE, it creates a durable film that shields against harmful UV rays that cause fading, discoloration, and wood damage. It is specially